Water-heater j



C. H. FOX.

WATERv HEATER FOR AUTO -HRE ENGINES.` APPLICATION mw 55m23.191s.

15305579 l l Patented J une 3, 1919.

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CHARLES H. FOX, OF CINCINNATI, OHIO.V

WATER-IIEATER FOR AUTO FIRE-ENGINES.

Specification of Letters Patent.

Application led September` 23, 1918. Serial No. 255,340.

To all whom t may concern Be it known that I, CHARLES H. Fox, a citizen of the United States, and residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in iVater-Heaters for Auto Fire-Engines, of which the Yfollowing specification is a full disclosure.

My invention relates to a water heater or steam generator combined with the engine exhaust manifold of an automobile fire or pumping engine.

An object of the invention is to render available a supply of steam or hot water with Van auto fire or pumping engine in which the motive power is furnished by an internal combustion engine.

Another object of the invention is to pro- 'vide a boiler having tubes or flues communieating with and intermedite of two exhaust lines, whereby all or a portion. of the exhaust products from theY engine may be conveyed through the boiler tubes for heating the water contained in the boiler.

Other objects and features, some relating to structural details, will definitely appear from the detailed description of the accompanying drawings, illustrating a preferred embodiment of the invention, forming a part of the specification, and in theV draw ings like characters of reference denote corresponding parts throughout the several views of which: v

Figure 1 is a side elevation of my iinproved water heater and the upper portion of a plural cylinder internal combustion engine with which the heater is combined, showing the connection of the heater with the Vexhaust manifold of the engine for passage of the exhaust products from the engine cylinder through flues or passages of the heater.

A portion of the heater is shown in section to illustrate the heating fines.

Fig. 2 is an end elevation of the parts shown in Fig. 1. Fig, 3 is a section on line 3, 3, Fig. 1, and

Fig. 4 is a plan view of the valve or shutoff plate located in a slide-way at the base of the heater for controlling the communication between the heater flues and engine exhaust manifold.

With the induction of automobile motor pumping engines as fire lighting apparatus,-

it has been found necessary to make provision for furnishinga supply of hot water or steam for emergency uses, principally upper ends of the cylinders, and an exhaust manifold 3 extending in a horizontal plane Connects with the cylinders at one side thereof. The exhaust manifold 3 has its outlet end 4 extending' downwardly in a vertical plane for the purpose of appropriately leading the exhaust pipe or main from the engine. As shown, the horizontal portion of the exhaust manifold is formed of three sec- Patented June 3, 1919.V

tions, with the intermediate section 5 as a Y flanged T providing an Y elongated lateral opening 6 for establishing an upward course for the exhaust products passing through the manifold. Ahorizontal tank or cylindrical bore 7, as a boiler, having flanged lower and upper faces is secured to and supported upon the coupling flange 8 of the intermediate T section 5 of the manifold 3, by bolts passing through the coupling flange of the T section 5 into the base flange 9 of the boiler.

A series of tubes 10 extend crosswise or Vvertically through Vthe boiler 7, having the opposite ends fixed into the walls of the boiler in an well-known manner to )rovideV open end flues through the boiler communi.- cating at their lower ends with the lateral opening 6 and exhaust manifold passage, and at the upper ends with a conduit cap 11 secured upon and to the upper coupling flange 12 of the boiler. The conduit cap 11 is open at one end and connects with an end of a section of pipe 13 curved to lead downwardly and connecting with the flanged branch pipe fitting 14, likewise connecting with the depending manifold outlet endY '4, bringing the two exhaust lines together to connect with a common discharge pipe, not shown, but which connects with the branch fitting 1i. The branch fitting 14 also serves as a casing for a butterfly valve 15, having its dian'ietrical axis 16 extended through one side of the casing to which a crank arm 17 is fixed for swinging the valve. The oppo* site end of the crank arm connects with a connecting rod 18 extending tc an accessible point or reach of the operator. f

The boiler head 19, at its upper and lower sides, is provided with the integral nipple extension 20, 20, to which the water lever gage 21 is connected. The water lever gage, at its lower body tting has a drain-cock connecting with a drain tube Q3 for draining the water from the boiler. A suitable or commercial type of safety valve may be provided or the boiler. 2i indicates a piping tapping intoV the upper portion of the boiler head 19, provided with a valve 25, which may serve alternately as a steam outlet or water inlet, but this may be modified by providing separate outlet and inlet connections to` meet the various demands of the men. TheA opposite boiler head 26 is provided with a pressure gage 27. Y Y

The base face of the boiler is recessed to prov-*ide a slide-way for the damper or exhaust controller plate 28, which slides between the boiler and intermediate manifold T section for shutting ofi' or admitting the exhaust gases trom the engine into the boiler flues. The plate is provided with a series of apertures arranged and corresponding with the lines, so as to respectively register with the lower ends of the tubes. Moving the plate 28 outwardly to bring the solid portions ci' the plate into line with the tube, shuts off communication with the tubes. The plate at its front end has a chain connected therewith as a handle for the operator. The plate is locked within its slideway by a spring clip 30 fixed to thc boiler side, having its free end projected to engage into a notch 31 formed into the side edge of the damperV or register plate.

In operation, the buttcriiy valve may be completely closed or regulated for blocking the outlet end of the exhaust manifold for directing the required amount of hot exhaust products from the engine through the boiler fines, and thence through the subbranch connecting with and leading from the upper end of the boiler, heating the water within the boiler around the tubes, to a degree suiiiciellt t0 generate steam of a volume sufficient to meet the demands required. lt has been experienced that with this form of boiler, having vertical up-fiues communicating with the exhaust manifold at a central point and in an upward course direction, the flow of the exhaust products is not materially retarded nor is there any appreciable baclr pressure to any particular one of the cylinders of the engine, When the engine is operating under heavy dutyT conditions, the controlling valve in the manifold can be set to admit a direct escape of a proportion of the exhausting products as a relier", while a Y certain proportion is permitted to pass through the boiler iues.

Therefore, the heat for the boiler can be exclusively regulated or controlled by adjustment of the butterfly valve in the manifold, and the plate valve of the boiler serve merely as an auxiliary for a more permanent control as for a complete opening or shutting of the flues. As there is. practical-ly no call for hot water or steam during the temperate seasons., it is` desirable during such periods to have the heat cut off entirely from the boiler.

Having described my invention I claim;

1. The combination with an internal, combustion engine, an exhaust manifold connecting with the respective cylinders of the engine, and a boiler comprising a horizontal barrel', having av series of vertical tubes` extended therethrough at one end' in connnunication with vsaidv manifold, and a slidable valve plate for controlling the communication of all of said tubes with the said manifold. Y

2. The combination with an internal' combustion engine, an exhaust manifold extending in a horizontal plane connecting with' the respective cylinders of the engine, a boiler comprising a horizontal barrel mounted upon said manifold, having a series of vertical tubes extended therethrough communicating at the lower ends with said manifold, and a branch. conduit connmting with the boiler communicating with the opposite ends of said tubes and with said manifold. Y

3. rEhe combination with an internal combustion engine, an exhaust manifold extending in a horizontal plane connecting with the respective cylinders of the engin c, a boiler comprising a horizontal barrel mounted upon said manifold, having a series of vertical tubes extended therethrough communicating at the lower ends with said manifold, and a branch conduit connecting with the boiler communicating with opposite ends of said tubes and with said manifold, and a valve in said manifold between' its engine cylinder and branch conduit connections, regulatable for diverting all; or portion of the exhaust gases through said boiler tubes and branch conduit.

ln witness whereof', I hereunto subscribe my name, as attested by the two subscribing witnesses.

Witnesses L. A. BEC-K,

CLARENCE B. FOSTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). G. 

